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<pre><code><a href="#1" id="1" class="l"> 1: </a><span class="xlang">&lt;?php</span>
<a href="#2" id="2" class="l"> 2: </a>
<a href="#3" id="3" class="l"> 3: </a><span class="php-comment">/**
</span><a href="#4" id="4" class="l"> 4: </a><span class="php-comment"> * 核心出错异常类
</span><a href="#5" id="5" class="l"> 5: </a><span class="php-comment"> * 可以根据DEBUG模式的启用情况，给出常规处理方式。
</span><a href="#6" id="6" class="l"> 6: </a><span class="php-comment"> * 处理方式：覆盖__construct方法。
</span><a href="#7" id="7" class="l"> 7: </a><span class="php-comment"> */</span>
<a href="#8" id="8" class="l"> 8: </a><span class="php-keyword1">class</span> DIException <span class="php-keyword1">extends</span> Exception {
<a href="#9" id="9" class="l"> 9: </a>    
<a href="#10" id="10" class="l">10: </a>    <span class="php-keyword1">function</span> __construct(<span class="php-var">$message</span>, <span class="php-var">$code</span>=<span class="php-num">0</span>, <span class="php-var">$previous</span>=<span class="php-keyword1">NULL</span>){
<a href="#11" id="11" class="l">11: </a>
<a href="#12" id="12" class="l">12: </a>        <span class="php-keyword1">if</span>(DI_DEBUG_MODE){
<a href="#13" id="13" class="l">13: </a>            parent::__construct(<span class="php-var">$message</span>, <span class="php-var">$code</span>, <span class="php-var">$previous</span>);
<a href="#14" id="14" class="l">14: </a>        }
<a href="#15" id="15" class="l">15: </a>        <span class="php-keyword1">else</span>{
<a href="#16" id="16" class="l">16: </a>            <span class="php-comment">//这里不继承调用父类构造器，阻止显式抛出异常，这样就不用在每个catch块中进行手动判断DEBUG模式了</span>
<a href="#17" id="17" class="l">17: </a>            <span class="php-keyword1">if</span>(DI_IO_RWFUNC_ENABLE){
<a href="#18" id="18" class="l">18: </a>                <span class="php-comment">//将错误日志写到文件</span>
<a href="#19" id="19" class="l">19: </a>                <span class="php-var">$time</span> = <span class="php-keyword2">date</span>(<span class="php-quote">'Y-m-d H:i:s'</span>);
<a href="#20" id="20" class="l">20: </a>                <span class="php-var">$file</span> = DI_LOG_PATH . <span class="php-quote">'log_'</span> . <span class="php-keyword2">date</span>(<span class="php-quote">'Y-m-d'</span>) . <span class="php-quote">'.txt'</span>;
<a href="#21" id="21" class="l">21: </a>                <span class="php-var">$link</span> = <span class="php-keyword2">fopen</span>(<span class="php-var">$file</span>, <span class="php-quote">'a+'</span>);
<a href="#22" id="22" class="l">22: </a>                <span class="php-keyword2">fwrite</span>(<span class="php-var">$link</span>, <span class="php-var">$time</span> . <span class="php-quote">&quot;    </span><span class="php-var">{$_SERVER['SERVER_PROTOCOL']}</span><span class="php-quote">    </span><span class="php-var">{$_SERVER['SERVER_NAME']}$</span><span class="php-quote">{(80==</span><span class="php-var">$_SERVER</span><span class="php-quote">['SERVER_PORT']?'':':'.</span><span class="php-var">$_SERVER</span><span class="php-quote">['SERVER_PORT'])}</span><span class="php-var">{$_SERVER['REQUEST_URI']}</span><span class="php-quote">    </span><span class="php-var">$message</span><span class="php-quote">\r\n&quot;</span>);
<a href="#23" id="23" class="l">23: </a>            }
<a href="#24" id="24" class="l">24: </a>            <span class="php-keyword1">else</span>{
<a href="#25" id="25" class="l">25: </a>                <span class="php-comment">//将错误日志写到数据库，但这需要提前配置好数据库信息</span>
<a href="#26" id="26" class="l">26: </a>            }
<a href="#27" id="27" class="l">27: </a>            <span class="php-keyword1">require</span> DI_PAGE_503;
<a href="#28" id="28" class="l">28: </a>        }
<a href="#29" id="29" class="l">29: </a>        
<a href="#30" id="30" class="l">30: </a>    }
<a href="#31" id="31" class="l">31: </a>    
<a href="#32" id="32" class="l">32: </a>}
<a href="#33" id="33" class="l">33: </a>
<a href="#34" id="34" class="l">34: </a><span class="php-keyword1">class</span> DIError {
<a href="#35" id="35" class="l">35: </a>    
<a href="#36" id="36" class="l">36: </a>}
<a href="#37" id="37" class="l">37: </a>
<a href="#38" id="38" class="l">38: </a><span class="php-keyword1">class</span> DIErrorCode {
<a href="#39" id="39" class="l">39: </a>    <span class="php-keyword1">const</span> EXAMPLE = <span class="php-num">0x00000001</span>;
<a href="#40" id="40" class="l">40: </a>}
<a href="#41" id="41" class="l">41: </a></code></pre>

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